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Rolling resistance is the main key factor in measuring the energy efficiency of a tyre and has direct influence on the fuel consumption of a vehicle. A set of tyres of the green class "A" compared to a "G" class can reduce fuel consumption by 9% [3] of a passenger car; even more for trucks.
The post Here’s What Those Numbers on Your Tires Mean appeared first on Reader's Digest. Here's what those numbers on your tires mean—and why knowing them is essential for car owners.
The tire diameter is given for High Flotation tires and omitted from Numeric tires. 2-digit number: The diameter of the tire in inches. x: Separator character. 3- or 4-digit number: The section width (cross-section) of the tire in inches. If the tire diameter is not given, section widths ending in zero (e.g., 7.00 or 10.50) indicate the aspect ...
Glove prints, also sometimes described as gloveprints or glove marks, are latent, fingerprint-like impressions that are transferred to a surface or object by an individual who is wearing gloves. Criminals often wear gloves to avoid leaving fingerprints , which makes the investigation of crimes more difficult.
While tire lettering was previously drawn or painted onto the tires, in the late 1960s, tire manufacturers began producing white letter tires that were part of the tire. Early automobile tires were made of pure natural rubber with various chemicals mixed into the tread compounds to make them wear better [4]. The best of these was zinc oxide, a ...
A typical example of a tire marking according to ISO 5775-1 is: 32-597 inflate to 400 kPa. The first number (nominal section width) is essentially the width of the inflated tire (minus any tread). The second number (nominal rim diameter) is the inner diameter of the tire when it is mounted on the rim.
Uniform Tire Quality Grading, commonly abbreviated as UTQG, is a set of standards for passenger car tires that measures a tire's treadwear, temperature resistance and traction. The UTQG was created by the National Highway Traffic Safety Administration in 1978, a branch of the United States Department of Transportation (DOT). [ 1 ]
Tire uniformity refers to the dynamic mechanical properties of pneumatic tires as strictly defined by a set of measurement standards and test conditions accepted by global tire and car makers. These standards include the parameters of radial force variation , lateral force variation , conicity, ply steer, radial run-out , lateral run-out , and ...